Your iPhone keeps you connected to the world, but constant phone calls, internet browsing, e-mail, music, and videos quickly drain the battery. The Monster Mobile Charge It to Go gives your iPhone the secure protection it needs and the extra power you want to talk, work, and play longer. Even better, the built-in battery features overcharge, short circuit, and thermal protection for the ultimate safety. The precision fitted case also gives you full access to all the iPhone ports and controls.